EP 1627261 A4 20090715 - EMBEDDED INFORMATION CARRIER FOR OPTICAL DATA
Title (en)
EMBEDDED INFORMATION CARRIER FOR OPTICAL DATA
Title (de)
EINGEBETTETER INFORMATIONSTRÄGER FÜR OPTISCHE DATEN
Title (fr)
SUPPORT D'INFORMATIONS INTEGRE POUR DONNEES OPTIQUES
Publication
Application
Priority
- US 2004010868 W 20040409
- US 46256603 P 20030410
Abstract (en)
[origin: US2004201873A1] In a system for authenticating information, a holographic element, including a first layer of optical information in a first coded pattern and a second layer of optical information in a second coded pattern is inserted into a reader. The reader includes an opening into which the holographic element may be positioned, a light source, a first detector positioned at a first predetermined distance from the location of the holographic element when the holographic element is positioned in the opening, and a second detector positioned at a second predetermined distance from the location of the holographic element when the holographic element is positioned in the opening.
IPC 8 full level
G03H 1/00 (2006.01); G02B 5/32 (2006.01); G03H 1/22 (2006.01); G11B 7/0065 (2006.01); G11B 23/28 (2006.01)
CPC (source: EP US)
B42D 25/328 (2014.10 - EP US); G02B 5/32 (2013.01 - EP US); G03H 1/0011 (2013.01 - EP US); G03H 1/22 (2013.01 - EP US); G03H 1/2249 (2013.01 - EP US); G11B 23/283 (2013.01 - EP US); B42D 2035/14 (2022.01 - EP); G03H 2001/0413 (2013.01 - EP US); G03H 2001/0497 (2013.01 - EP US); G03H 2001/184 (2013.01 - EP US); G03H 2001/2231 (2013.01 - EP US); G03H 2001/2244 (2013.01 - EP US); G03H 2210/30 (2013.01 - EP US); G03H 2210/33 (2013.01 - EP US); G03H 2210/53 (2013.01 - EP US); G03H 2270/31 (2013.01 - EP US); Y10S 428/916 (2013.01 - EP US)
Citation (search report)
- [XY] WO 9209444 A1 19920611 - DE LA RUE THOMAS & CO LTD [GB]
- [Y] FR 2785697 A3 20000512 - BASLER AG [DE]
- [A] JP H1124541 A 19990129 - DAINIPPON PRINTING CO LTD
- [A] DE 4431531 A1 19960307 - KURZ LEONHARD FA [DE]
- See references of WO 2004093060A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
US 2004201873 A1 20041014; US 7161720 B2 20070109; EP 1627261 A2 20060222; EP 1627261 A4 20090715; EP 1627261 B1 20151209; ES 2564787 T3 20160329; PL 1627261 T3 20160729; US 2007091396 A1 20070426; US 7675662 B2 20100309; WO 2004093060 A2 20041028; WO 2004093060 A3 20050127
DOCDB simple family (application)
US 82204404 A 20040409; EP 04759284 A 20040409; ES 04759284 T 20040409; PL 04759284 T 20040409; US 2004010868 W 20040409; US 56396406 A 20061128